Installation / Operation Instruction Manual

30
Venting continued-
Figure 19 - Dimensional Layout of Concentric Vent Kits
Concentric Vent Size
(A) Nominal Pipe Size
(B) in inches
2 in
2 in
3 ½ in
3 in
3 in
4 ½ in
4 in
4 in
6 5/8 in
Figure 20 - Concentric Vent Kit Part Identification
Concentric Vent Size
(A) in inches
(B) in inches
2 in
2 in
3 ½ in
3 in
3 in
4 ½ in
4 in
4 ½ in
6 5/8 in
2. Determine the best location for the termination kit.
3. Cut the recommended 3 ½ in (8.9 cm) diameter hole for 2 in (5.1 cm) vent termination, 6 5/8 in (16.9 cm) diameter
hole for 4 in (10.2 cm) vent termination, or 4 ½ in (11.5 cm) for 3 in (7.6 cm) vent termination.
4. Partially assemble vent kit by performing the following:
a. Cement concentric Y fitting to larger diameter pipe (see Figure 20).
b. Cement rain cap to smaller diameter pipe (see Figure 21).
Figure 21 - Rain Cap to Small
Vent Pipe Assembly